Tony and Ricky spend a certain amount of money from their accounts each week at a pet shelter. The table shows the relationship between the amount of money (y) remaining in Tony's account and the number of weeks (x): Function 1: Number of Weeks (x) Amount Remaining (dollars) (y) 1 30 2 24 3 18 4 12 The equation shows the relationship between the amount of money, y, remaining in Ricky's account and the number of weeks, x: Function 2: y = –7x + 30 Which statement states and explains which function shows a greater rate of change? Function 1, because Tony spends $6 each week and Ricky spends –$7 each week Function 2, because Ricky spends $7 each week and Tony spends $6 each week Function 1, because Tony spends $18 each week and Ricky spends $23 each week Function 2, because Ricky spends $30 each week and Tony spends $18 each week